// Transform may close input reader and replace it with a new one.
// To emphasize this we pass xmlReader by ref.s
private static void Transform(ref XmlReader xmlReader)
{
for (;;)
{
while (xmlReader.NodeType != XmlNodeType.Element && xmlReader.Read())
{
; // skip to the first element
}
string xslt = CircuitProject.FindTransformation(xmlReader.NamespaceURI);
if (xslt == null)
{
throw new CircuitException(Cause.UnknownVersion, Properties.Resources.ErrorUnknownVersion);
}
if (xslt.Length == 0)
{
// No transform needed. We are at the current version.
return;
}
XmlHelper.Transform(xslt, ref xmlReader);
}
}
public static bool CanPaste(string text)
{
// To reduce number of exceptions from XML reader lets check there if some familiar text is in the string.
// Lets not use namespace as it will prevent pasting of old versions of the XML.
if (!string.IsNullOrEmpty(text) && text.Contains("<lc:CircuitProject"))
{
try {
using (XmlReader xmlReader = XmlHelper.CreateReader(new StringReader(text))) {
string rootName = xmlReader.NameTable.Add("CircuitProject");
while (xmlReader.NodeType != XmlNodeType.Element && xmlReader.Read())
{
; // skip to the first element
}
return(
XmlHelper.AreEqualAtoms(rootName, xmlReader.LocalName) && // We are at CircuitProject element
CircuitProject.FindTransformation(xmlReader.NamespaceURI) != null // and it is in known namespace
);
}
} catch {}
}
return(false);
}
